.container {
    .make-row();
}

.c1 {
    .make-column(1/3);
}

.c2 {
    .make-column(2/3);
}

.c1-1 {
    .make-column(1/2 1/3);
}

.c2-1 {
    .make-column(1/5 2/3);
}

.c3 {
    .make-column(1/2, 0%, 1/2);
}

.c4 {
    .make-column(1/2, 0%, -1);
}

.c5 {
    .make-column(1/6, 15px, 960px);
}
